AIRCRAFT INDUSTRY / ALIGNMENT OF COMPONENTS IN AN AIRCRAFT
During assembly, maintenance and repair of a large transport aircraft various components of the equipment must be precisely aligned to a reference platform.
Two radar platforms must be aligned precisely parallel to the reference platform. The measurements must be carried out while other teams are working on the same aircraft.
CONTINUOUS MONITORING OF AN OBJECT, WHICH IS EXPOSED TO STRONG TEMPERATURE CHANGES
On a radar installation which is exposed to significant temperature changes as well as to direct sunlight, precise, reliable and continuous inclination measurements should be carried out.
All high-precision instruments are sensitive to temperature changes. Significant temperature changes inhibit precision measurements and can even prevent them.
Precise and continuous monitoring of the inclination of the base of the radar station.
INCLINATION MEASURING OF A SATELLITE DURING A SYSTEM TEST IN A TEMPERATURE VACUUM CHAMBER
Testing of a satellite in a temperature and vacuum chamber under conditions like in space: temperatures from –30°C to +60°C and vacuum.
Level all systems of a satellite to each other. A precise surface on the satellite serves as horizontal reference point. The inclination of this horizontal reference must be within ±0.001 mm/m.
CONTROLLED CRADLE TO LIFT AND PLACE PAYLOAD FAIRING OF A ROCKET
The payload fairing covers the goods transported and provides aerodynamic to the leading end of the rocket. As the payload fairing is a highly complex unit, no scratches or even dents are acceptable. To lift and to position the payload fairing a cradle is used.
The balancing and weight distribution cross at the head of the cradle should be monitored in both axes. Deviation from horizontal alignment must be visualized at the cranes control panel.
Thresholds are defined regarding misalignment. Overshooting these limits must activate an alarm and disrupt the lifting actions.
MEASUREMENT AND CERTIFICATION OF THE TORQUE-RESISTANCE ON AN ENGINE-SHAFT
The torque-resistance of an engine shaft is decisive for the reliability and durability of the engine. However, to measure this resistance for long shafts is a challenging task.
The torsion of an engine-axis mounted on a testing-rig with a base of 12m x 12m must be measured precisely by recording the change of the twist-inclination and by putting it in relation to the applied torque.
AIRPLANE CONSTRUCTION: MEASURING THE PROFILE OF AN AIRPLANE PROPELLER
In production, the profile of an airplane-propeller is measured with the help of a CMM. During maintenance work it would be cumbersome to remove the whole propeller and rarely there is a CMMs available on smaller airports.
The profile of a propeller must be measured easily and precisely on site without the need to remove the propeller.